<?php
function b64($src)
{
	$dicEnc = array('g','h','i','j','k','l','m','n','o','p');
	$b64 = base64_encode($src);
	$i = 0;
	while ($i < 10) {
		$b64 = str_replace($i, $dicEnc[$i], $b64);
		$i ++;
	}
	echo $b64;
}